Integrally Colored Concrete Best Practices Rich Cofoid Sr. Marketing and Product Line Manager

Transcription

1 The Euclid Chemical Company Integrally Colored Concrete Best Practices Rich Cofoid Sr. Marketing and Product Line Manager

2 Raw Material Synthetic Iron Oxides Natural Oxides Organic Pigments

3 Synthetic Iron Oxides Most Prevalent in the Industry Processing of Metallic Iron with Nitrobenzene High Tint Strength UV Stable Weather Stable Insoluble in Water

4 Organics Carbon Black, Phthalo Blues and Greens High Tint Strength NOT Weather Safe. Susceptible To Fading May Affect Air Entrainment

5 Available in Three Basic Forms Powder Liquid Granular

6 Powder

7 Powder

8 Liquid

9 Liquid

10 Liquid

11 Granular

12 What is Integral Color? Granular Pigment ADVANTAGES Lower Dosage than Liquid No Shelf Life No Product Settling No Recycling Required Spills Clean Easily- No Mess No Freezing You Don t Pay for Water Free Flowing Grains Low/No Dust Pure Synthetic Iron Oxides- No Fillers

13 Loading Portland is Measured in 94 lb Sacks Also Designated as Per 100 Weight or as a Percentage Integral Loading Refers to How Much Integral per Sack Whether Powder is Sold by the Pound or by the Yard, Cement Content is the Determining Factor

14 Additional Information Pigment Particles are 10 Times Finer Than Portland NOT Meant For Dry Shake Application

15 Additional Information Pigment Particles are 10 Times Finer Than Portland NOT Meant For Dry Shake Application Colors the Portland Cement Only

16 Additional Information Pigment Particles are 10 Times Finer Than Portland NOT Meant For Dry Shake Application Colors the Portland Cement Only Can t Gauge Final Color by Dry Pigment

17 Additional Information Pigment Particles are 10 Times Finer Than Portland NOT Meant For Dry Shake Application Colors the Portland Cement Only Can t Gauge Final Color by Dry Pigment Keep It Under 10% to Avoid Weakening Concrete After 6% or 7% Not Much of a Visual Change in Final Color 2 lb 4 lb 6 lb 8 lb 10 lb

18 What is Integral Color? ASTM C 979 Sets Standard for Integral Pigments, Including UV Stability Alkali Resistance Wettability and Solubility Curing Stability Total Sulfates Affect on Setting of Concrete Affect on Compressive Strength of Concrete Color Match of Shipment

19 THE Key to a Good Job Meaning the customer is happy enough for you to get paid Meaning you can use the customer for a referral Educate The Consumer This is not a paint or a coating You are dying a natural material with another natural material List the shortcomings as well as the benefits

20 Sell From Samples and Mock Ups

21 NOT Color Charts

22 Use Same Raw Materials and Finish Techniques as the Project Troweled Finish = More Inconsistent Looking Color and Highlights Imperfections

23 Photos, Photos, Photos (For Ideas NOT for Color Selection) These 2 photos are of the same pile of concrete

24 Photos, Photos, Photos (For Ideas NOT for Color Selection) These 2 jobs photos were taken the same day

25 References and Referrals

26

27 PORTLAND CEMENT SAND AGGREGATE WATER ADMIXTURE (or 2) 560 lbs 1120 lbs 1680 lbs Gals TOTAL 3360 lbs Integral Color will typically weigh between 6 to 36 pounds BY FAR the smallest ingredient.

28 Doesn t it make sense that ALL those other ingredients have a dramatic bearing on the final color?

29 CEMENT COLOR White vs Gray White Gray

30 All With Gray Cement CEMENT COLOR White vs Gray Some with White Cement

31 CEMENT COLOR Gray vs Gray Lots of Different Shades of Gray Portland

32 CEMENT COLOR Gray vs Gray Same Amount of Pigment in Different Batches of Portland

33 The picture can't be displayed. CEMENT COLOR Same Pigment, Two Different Cements

34 How the Mix Affects The Final Color CEMENT CONTENT 4 yrd 2 yrd 1yrd

35 ADMIXTURES

36 How the Mix Affects The Final Color ADMIXTURES Air Entraining Normally Lighter Plasticizer Initially Darker (reduced affects Later) Accelerator (NO Calcium Chloride) Darker Water Repellant Possibly Darker

37 How the Mix Affects The Final Color ADMIXTURES No Calcium Chloride Based Accelerators Most Commonly Available Least Expensive Decreases Set Time Increases High Early Strength BUT, Will Leave a Blotchy, Hazy Surface Use Non Calcium Chloride Accelerators

38 How the Mix Affects The Final Color ADMIXTURES Pozzolans- Portland Substitutes ie. Fly Ash and Slag

39 CEMENT CONTENT 6 sack 5 sack 7 sack

40 AGGREGATES Largest Part of The Concrete Mix Initial Influence but Greater Influence as the Slab Weathers

41 WATER TO CEMENT RATIO Most Chart Colors/Samples Produced at 4 Slump Choose Lowest Possible Slump (4-5 ) If Higher Slump Needed For Placement, Use Plasticizer Consider Moisture in Raw Materials More Water = Lighter Color Color Concentration Bleed Water Rises and Leaves Larger Pores/Capillaries Resulting in Lighter Looking Surface Don t Add Water at the Job Site. If You Do- Be Consistent

42 WATER TO CEMENT RATIO

43 WATER TO CEMENT RATIO Two Pours, Same Day. Water Added to Second Pour

44 Question?? At What Loading Will the Mix Components Have More Influence? High or Low? ½ 1 2 4

45 Best Practices Mock Ups Should Be at Least 3 Yards Use Same Raws as Will be Used in Final Project Use Minimum Cement Content of 470 lbs/yard Use 100% Portland. If Pozzolans Used, Be Consistent Do Not Exceed 5 Slump At The Plant, Add Pigment to the Head Water At the Job Site, Add Color Into Mix (Avoid Fins). Mix 8 to 12 Mins, Check For Ribboning

46 Best Practices If Sand Blasting or Exposing Agg, Cut Pigment Bag Open and Pour Color Into Truck Also Short Mix Time or Small Aggregate May Not Completely Disintegrate Bags If Using Liquid Color at Job Site, Use Same Amount of Rinse Water in Each Bucket Use No Calcium Chloride in Mix Keep Mix Time Consistent

47 Conclusions With a Little Care and Attention to Detail, You Will End Up with a Close Match

48 Conclusions However, If You Just Roll The Dice, You Will Probably End Up With

49 Job Site Prep Grade Land So Water Will Drain Away From Slab

50 Job Site Prep Place Concrete Over Uniformly Graded Compacted Subgrade/Sub Base (Sand, Gravel, Crushed Stone)

51 Job Site Prep Dampen Sub Base

52 Job Site Prep Don t Pour Over Mud, Standing Water, Frost, or Ice

53 Job Site Prep Set Forms to Achieve Uniform Slab Thickness

54 Job Site Prep Turn Off Sprinklers

55 Job Site Prep Improper Prep Can Lead To Disaster

56 Weather Temperature Affects Cure Time Temperature Affects Water Required to Maintain Consistent Slump Temperature Affects Size and Shape of Calcium Silicate Crystals During Hydration Higher Temp = More Irregular and Larger Crystals = More Porous Concrete = Greater Light Scattering Across Surface = Lighter Looking Color

57 Weather Brookings, SD 16 Month Project

58 Weather Try To Place During Consistent Weather 60 to 80 Degrees is Perfect Schedule to Avoid Exposure to Hot Sun Until Curing Materials Are Applied Avoid Windy Conditions No Rain, Snow, or Sub Freezing Temps

59 RECAP Be Consistent Be Detailed

60 The Euclid Chemical Company QUESTIONS AND COMMENTS?? Rich Cofoid Euclid Chemical s Increte Systems rcofoid@increte.com